Starting about 0:27, Kyle's grandmother learns about the Prius Plug-In Hybrid. Her dubious expression at the start never really goes away, but she quickly catches on to the principles of how a plug-in hybrid operates: It offers longer electric range at higher speeds, but it may still switch on the engine when needed.

Like most grandmothers, she also worries that her grandson is speeding: "Well, let's just make sure he doesn't go ... you-know-how-many miles per hour."

It's a charming twist on the usual road test video, and Thibaut, like many of us, has gotten pretty good at explaining the intricacies of hybrid operation to non-motorheads. Even including grannies.

I love the down-to-earth nature of the interview. I especially like the summary dismissal of the vehicle because of the husband's preference for larger vehicles. In the end, for all the effort, for all the technical details, for all the saving of the earths resources, the decision comes down to some vague, irrational personal preference. Tough luck Toyota. Funnily enough, my own 80 year old father drives a full size van for no compelling reason. Reminds me of the husband in the interview.